<template>
    <div>
        <!-- 面包屑导航区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片区域 -->
        <el-card class="box-card">
            <!-- 搜索与添加区域 -->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getuserlist">
                        <el-button slot="append" icon="el-icon-search" @click="getuserlist"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                   <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 用户列表区域 -->
            <el-table border stripe :data="userlist">
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态" >
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
                       </el-switch>
                    </template>
                       
                </el-table-column>
                <el-table-column label="操作" width="180px">
                    <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                        <el-tooltip effect="dark" content="角色分配" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>  
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[1, 2, 5,10 ]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total">
            </el-pagination>
            <!-- 添加用户的对话框 -->
            <el-dialog
                title="添加用户"
                :visible.sync="addDialogVisible"
                width="50%"
                @close="addDialogClosed"
                >
                <!-- 内容主体区 -->
                <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                    <el-form-item label="用户名" prop="username">
                        <el-input v-model="addForm.username"></el-input>
                    </el-form-item>
                     <el-form-item label="密码" prop="password">
                        <el-input v-model="addForm.password"></el-input>
                    </el-form-item>
                     <el-form-item label="邮箱" prop="email">
                        <el-input v-model="addForm.email"></el-input>
                    </el-form-item>
                     <el-form-item label="手机" prop="mobile">
                        <el-input v-model="addForm.mobile"></el-input>
                    </el-form-item>
                </el-form>
                <!-- 底部区 -->
                <span slot="footer" class="dialog-footer">
                    <el-button @click="addDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="addUser">确 定</el-button>
                </span>
            </el-dialog>
            <!-- 修改用户的对话框 -->
            <el-dialog
            title="修改用户信息"
            :visible.sync="editDialogVisible"
            width="50%"
            @close="editDialogClosed"
            >
                <!-- 内容主体区域 -->
                 <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px" >
                    <el-form-item label="用户名" >
                        <el-input v-model="editForm.username" disabled></el-input>
                    </el-form-item>
                    <el-form-item label="邮箱" prop="email" >
                        <el-input v-model="editForm.email"></el-input>
                    </el-form-item>
                    <el-form-item label="手机号" prop="mobile">
                        <el-input v-model="editForm.mobile"></el-input>
                    </el-form-item>
                </el-form>
                <!-- 底部按钮区域 -->
                <span slot="footer" class="dialog-footer">
                    <el-button @click="editDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="editUserInfo">确 定</el-button>
                </span>
            </el-dialog>
            <!--分配角色的对话框  -->
            <el-dialog
                title="分配角色"
                :visible.sync="setRoleDialogVisible"
                width="50%"
                @close="setRoleDialogClosed"
                >
                <div>
                    <p>当前的用户：{{userInfo.username}}</p>
                    <p>当前的角色：{{userInfo.role_name}}</p>
                    <p>分配新角色：
                         <el-select v-model="selectedRoleId" placeholder="请选择">
                            <el-option
                            v-for="item in rolesList"
                            :key="item.id"
                            :label="item.roleName"
                            :value="item.id">
                            </el-option>
                        </el-select>
                    </p>
                </div>
                <span slot="footer" class="dialog-footer">
                    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
                </span>
            </el-dialog>
        </el-card>
    </div>
</template>
<script>
export default {
    data() {
        // 验证邮箱的规则
        var checkEmail = (rule,value,cb)=>{
            const regEmail =/^([a-zA-Z]|[0-9])(\w|\-)+@[a-zA-Z0-9]+\.([a-zA-Z]{2,4})$/
            if(regEmail.test(value)){
                // 合法的邮箱
                return cb()
            }
            cb(new Error('请输入合法的邮箱'))
        }
        // 验证手机号的规则
        var checkMobile = (rule,value,cb)=>{
            const regMobile =/^(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\d{8}$/
            if(regMobile.test(value)){
                // 合法的邮箱
                return cb()
            }
            cb(new Error('请输入合法的手机号'))
        }
        return {
            queryInfo:{
                query:'',
                pagenum:1,
                pagesize:2
            },
            userlist:[
               
            ],
            total:0,
           
           
            info:'',
            // 控制对话框的显示与隐藏
            addDialogVisible:false,
            // 添加用户的表单数据
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
            // 表单验证规则对象
            addFormRules:{
                username:[
                    {required:true,message:'请输入用户名',trigger:'blur'},
                    {min:3,max:10,message:'用户名的长度为3到10位',trigger:'blur'}
                ],
                password:[
                    {required:true,message:'请输入密码',trigger:'blur'},
                    {min:6,max:15,message:'用户名的长度为6到15位',trigger:'blur'}
                ],
                email:[
                     {required:true,message:'请输入邮箱',trigger:'blur'},
                     {validator:checkEmail,trigger:'blur'}
                ],
                mobile:[
                     {required:true,message:'请输入手机号',trigger:'blur'},
                     {validator:checkMobile,trigger:'blur'}
                ]
            },
            // 控制修改用户信息的对话框的显示和隐藏
            editDialogVisible:false,
            editForm:{},
            editFormRules:{
                 email:[
                     {required:true,message:'请输入邮箱',trigger:'blur'},
                     {validator:checkEmail,trigger:'blur'}
                ],
                mobile:[
                     {required:true,message:'请输入手机号',trigger:'blur'},
                     {validator:checkMobile,trigger:'blur'}
                ]
            },
            //控制分配权限对话框的显示和隐藏
            setRoleDialogVisible:false,
            // 需要被分配角色的用户信息
            userInfo:{},
            // 所有角色的数据列表
            rolesList:[],
            selectedRoleId:''

        }
    },
    mounted() {
        this.getuserlist()
    },
    methods: {
        // 监听pagesize改变的事件
        handleSizeChange(newSize){
            // console.log(newSize)
            this.queryInfo.pagesize = newSize
            this.getuserlist()
        },
        // 监听页码值改变的事件
        handleCurrentChange(newPage){
             this.queryInfo.pagenum = newPage
            this.getuserlist()
            // console.log(newPage)
        },
        // 监听Switch开关状态的改变
        async userStateChanged(userinfo){
            // console.log(userinfo)
            const {data:res} =  await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
            // console.log(res)
            if(res.meta.status !==200){
               userinfo.mg_state =!userinfo.mg_state
                return this.$message.error("更新用户状态失败")
            }
            this.$message.success('更新用户状态成功')

        },
        async getuserlist(){
            const {data:res} = await this.$http.get('users',{params:this.queryInfo})
            if(res.meta.status !==200)return this.$message.error('获取数据失败')
            this.userlist = res.data.users
            this.total = res.data.total
        },
        // 监听添加用户对话框的关闭事件
        addDialogClosed(){
            this.$refs.addFormRef.resetFields()
        },
        // 点击按钮添加新用户
        addUser(){
            this.$refs.addFormRef.validate(async valid=>{
                console.log(valid)
                if(!valid)return
                // 添加用户的网络请求
                const {data:res} = await this.$http.post('users',this.addForm)
                if(res.meta.status !=201)return this.$message.error('添加用户失败')
                this.$message.success('添加用户成功')
                this.addDialogVisible = false
            })
        },
        // 展示修改用户信息的对话框
        async showEditDialog(id){
            // console.log(id)
            const {data:res} = await this.$http.get('users/' + id)
            if(res.meta.status !==200)return this.$message.error('获取用户信息失败')
            this.editForm = res.data
            this.editDialogVisible = true
        },
        editDialogClosed(){
            this.$refs.editFormRef.resetFields()
        },
        // 修改用户信息并提交
        editUserInfo(id){
            this.$refs.editFormRef.validate(async valid=>{
                if(!valid)return
                // console.log("提交网络请求")
                const {data:res} = await this.$http.put('users/'+this.editForm.id,{email:this.editForm.email,mobile:this.editForm.mobile})
                if(res.meta.status !==200)returnthis.$message.error('修改用户信息失败')
                 // 关闭对话框
                this.editDialogVisible = false
                // 刷新数据列表
                 this.getuserlist()
                // 提示修改成功
                this.$message.success('更新用户信息成功')
            })
           
        },
        // 
        async removeUserById(id){
            const confirmResult=await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err=>err)
            // 如果用户点击了确认，则返回值为字符串confirm
             // 如果用户点击了取消，则返回值为字符串cancel
             if(confirmResult !=='confirm'){
                 return this.$message.info('已取消删除')
             }
            //  console.log('确认了删除')
            const {data:res} = await this.$http.delete('users/' + id)
            if(res.meta.status !==200)return this.$message.error('删除失败')
            
            this.$message.success('删除成功')
            this.getuserlist()
        },
        // 展示分配角色对话框
        async setRole(userInfo){
            this.userInfo = userInfo

            // 在展示对话框之前获取所有角色的列表
            const {data:res} = await this.$http.get('roles')
            if(res.meta.status !==200)return this.$message.error('获取角色列表失败')
            this.rolesList = res.data
            this.setRoleDialogVisible = true
        },
        // 点击按钮分配角色
        async saveRoleInfo(){
            if(!this.selectedRoleId){
                return this.$message.error('请选择要分配的角色')
            }
            const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})
            if(res.meta.status !==200)return this.$message.error('分配角色失败')
            this.$message.success('分配角色成功')
            this.getuserlist()
            this.setRoleDialogVisible = false
        },
        // 监听分配角色对话框的关闭事件
        setRoleDialogClosed(){
            this.selectedRoleId = ''
            this.userInfo = {}
        }
    },
}
</script>
<style lang="less" scoped>

</style>